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Arsenic Drug
Helps Treat
Rare Cancer

WASHINGTON -- The National Institutes of Health said that adding an arsenic compound made by Cephalon Inc. to other treatments for adults with a rare form of leukemia significantly improved survival.

The results of the study, sponsored by the National Cancer Institute, were so good that an independent data-monitoring board recommended the results be released early so doctors could consider adding the drug as part of early treatment for the disease.